نتایج جستجو برای: ultrasound

تعداد نتایج: 108659  

In this research, a comparison of biodiesel produced by ultrasound and heat methods was investigated. Methanol was used as the alcohol with molarity 3, 6 and 9 and KOH 0.5, 1 and 1.5 wt.% As a catalyst. In ultrasound technique, five vibrating pulse levels and three time levels were used. The results indicate that biodiesel produced by ultrasound in some properties includes a flash point of abou...

Journal: :iranian journal of radiology 0
masoud hashemi department of anesthesiology, akhtar hospital, shahid beheshti university of medical sciences, tehran, iran seyed mohammad jazayeri department of orthopedics, akhtar hospital, shahid beheshti university of medical sciences, tehran, iran asadollah saadat niaki department of anesthesiology, imam hossein hospital, shahid beheshti university of medical sciences, tehran, iran mahshid nikooseresht department of anesthesiology, beasat hospital, hamedan university of medical sciences, hamedan, iran; department of anesthesiology, beasat hospital, hamedan university of medical sciences, hamedan, iran. tel/fax: +98-8112651515 alireza hosseinpanah fellowship of pain, tehran, iran seyed sajad razavi department of anesthesiology, akhtar hospital, shahid beheshti university of medical sciences, tehran, iran

conclusion lumbar medial branch nerve block under ultrasound guidance was associated with high rates of treatment success and excellent treatment outcomes for facet joint pain. it is also feasible and administers no radiation. thus, ultrasound-guided procedures can be used instead of conventional methods. results the success rate was 98% (87/89 blocks), which was due to our use of ultrasound gu...

ژورنال: :مجله دانشکده پزشکی اصفهان 0
حسن رزمجو استاد، گروه چشم پزشکی، دانشکده ی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران شیرین فخری زاده پزشک عمومی، دانشکده ی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

مقدمه: این مطالعه جهت مقایسه ی مقادیر اندازه گیری شده ی ضخامت مرکز قرنیه با دستگاه های orbscan ii، ultrasound و pentacam در بیماران کاندیدای عمل photorefractive keratectomy (prk) انجام گرفت. روش ها: این مطالعه، یک مطالعه ی توصیفی- تحلیلی بود که در سال 1392 به مدت یک سال در بیمارستان فیض شهر اصفهان انجام شد. نمونه ی مورد بررسی، شامل 84 چشم از 84 بیمار که کاندیدای عمل prk بودند و سابقه ی عمل جراح...

Journal: :iranian biomedical journal 0
ژامک اخلاقی zhamak akhlaghi جلال ایزدی مبارکه jalal izadi mobarakeh مهرداد مختاری mehrdad mokhtari حمید بهنام hamid behnam امیرعباس رحیمی amir abbas rahimi محمد صالح خواجه حسینی mohammad saleh khajeh hosseini فرزانه سمیعی

background: initial studies have shown that low-energy ultrasound stimulates living tissue cells to reduce regeneration or speed up their recovery. the purpose of this study was to examine the effects of various ultrasound parameters on the speed of recovery in injured sciatic nerves. methods: nmri mice (n = 200) with injured left paw, caused by crushing their sciatic nerves, were randomly sele...

Ali Shakeri-Zadeh Jaber Beik

Introduction: Light-driven cancer therapy strategies (e.g. photodynamic therapy and photothermal therapy) have undergone remarkable progress in recent years, but they still suffer from a serious drawback of limited penetration depth of light in tissue. As a non-invasive and non- ionizing radiation, ultrasound can be focused remotely, transferring acoustic energy deep in the bo...

Journal: :bulletin of emergency and trauma 0
parisa javidi parsijani shiraz university of medical sciences nima pourhabibi zarandi shahram paydar hamidreza abbasi shahram bolandparvaz

o bjectives: to evaluate the accuracy of sonography in diagnosing acute appendicitis in patients with alvarado score 4–7. m e thods: this is a retrospective cross-sectional study being performed in namazee hospital affiliated with shiraz university of medical sciences during a one year period from 9/2007 to 9/2008. we evaluated all patients with alvarado score 4-7 and divided them in two groups...

Journal: :organic chemistry research 2015
ali ramazani morteza rouhani sang woo joo

the synthesis of aryl amides via the reactions of carboxylic acids and isocyanides in methanol was carried out in 78-95% yields under ultrasound irradiation. the method has wide applicability, and the protocol is mild, fast and efficient compared to the existing methods based on silent conditions.

Journal: :iranian journal of neonatology 0
reza sharafi department of neonatology, al-zahra hospital, gilan university of medical sciences, gilan, iran setila dalili department of pediatric endocrinology, 17th shahrivar hospital, school of medicine, gilan university of medical sciences, rasht, iran afagh hassanzadeh rad pediatric growth disorders research center, 17th shahrivar hospital, school of medicine, gilan university of medical sciences, rasht, iran

neonatal ovarian cysts (noc) are usually self-limiting structures, however, large or complex cysts may lead to severe complications. unfortunately, no standard guidelines have been introduced for the management, treatment and follow-up of these cysts. in this report, we aimed to introduce a very large noc without any pre- and post-natal complications. a 30 year-old mother, gravida 2, para 2, wi...

Journal: :iranian endodontic journal 0
letícia trevisan federal university of santa maria isadora razzera huerta federal university of santa maria carina michelon federal university of santa maria mariana de carlo bello federal university of santa maria rafael pillar federal university of santa maria carlos alexandre souza bier federal university of santa maria

introduction: the aim of this in vitro study was to evaluate the dissolving efficacy of eucalyptol and orange oil solvents associated with passive ultrasonic activation (pua) in zinc oxide-eugenol (zoe) based and epoxy resin-based root canal sealers. methods and materials: seventy samples of each sealer were prepared and then randomized according to the solvent and the time of the ultrasonic ac...

Journal: :مجله دانشکده پزشکی دانشگاه علوم پزشکی تهران 0
معصومه گیتی ghitee m ندا نبی زاده nabi zadeh n مارینا تومانیان

the evaluate the diagnostic value of image guided fine needle aspiration (fna) in breast lesions, the cytologic results of 401 patients were studied. all patients had either unpalpable masses or lesions who were hardly possible to localize by palpation and fna was performed by single radiologist under ultrasound guide in all cases. the cytologic results were divided into four categories (inconc...

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